| District of Massachusetts area codes: 978 | |
|---|---|
| Country | United States |
| State/Province | Massachusetts |
| Major City | Boston |
| Time Zone | Eastern |
| Prefix | County | Primary City | Company |
|---|---|---|---|
| 978-944 | Middlesex | Billerica, MA | New Cingular Wireless PCS - DC |
| 978-945 | Essex | Haverhill, MA | Xo Massachusetts |
| 978-946 | Essex | Lawrence, MA | Verizon New England Inc. |
| 978-947 | Middlesex | Billerica, MA | Global Crossing Local Services-ma |
| 978-948 | Essex | Rowley, MA | Verizon New England Inc. |
| 978-951 | Middlesex | Littleton, MA | Level 3 Communications |
| 978-952 | Middlesex | Littleton, MA | Verizon New England Inc. |
| 978-953 | Essex | Topsfield, MA | Xo Massachusetts |
| 978-956 | Worcester | Fitchburg, MA | Level 3 Communications |
| 978-957 | Middlesex | Lowell, MA | Verizon New England Inc. |
| 978-958 | Worcester | Gardner, MA | Local Access LLC |
| 978-960 | Essex | Lawrence, MA | Verizon New England Inc. |
| 978-961 | Essex | Newburyport, MA | Level 3 Communications |
| 978-963 | Middlesex | Concord, MA | Verizon New England Inc. |
| 978-964 | Middlesex | Waltham, MA | Mci Worldcom Communications |
| 978-965 | Essex | Lawrence, MA | Level 3 Communications |
| 978-967 | Middlesex | Lowell, MA | Verizon New England Inc. |
| 978-968 | Essex | Peabody, MA | Ctc Communications Corp. |
| 978-969 | Essex | Beverly, MA | Comcast Phone Of Massachusetts |
| 978-970 | Middlesex | Lowell, MA | Verizon New England Inc. |
There are 743 prefixes, In the code area, the major cities are Beverly, MA;Chelmsford, MA;Danvers, MA;Fitchburg, . The major city is Boston.